206208 looking glass

AS4837 China Unicom Backbone 🇨🇳 CN

CNCGROUP IP network of ShangHai IDC. Announcing 2,172 prefixes, seen at the RIS collectors.

IPv4 prefixes
1,520
59,345,664 (231,819 × /24)
IPv6 prefixes
652
402 × /32
Upstreams
16
transit providers observed
Peers
23
settlement-free adjacencies
Downstreams
86
transit customers observed
Customer cone
23,298
ASes reachable through it

Registry and operator data

AS number
AS4837
Name
China Unicom Backbone
Organisation
China Unicom
Country
🇨🇳 CN
RIR
APNIC
Allocated
2001-09-17
Network type
NSP
Traffic levels
10-20Tbps
Scope
Regional
Peering policy
Selective
IRR as-set
AS4837:AS-CNCGROUP
Website
https://www.chinaunicom.cn/
PeeringDB
net/730
Exchanges
3
Facilities
10

RPKI coverage of this AS

Its own announcements, validated against the current ROA set

2,109 valid (97.1%) 6 invalid (0.3%) 57 no ROA (2.6%)

Upstreams

Networks seen providing transit to this one

Network Country Cone IPv4 prefixes Paths Source
AS3356 Lumen (Level 3) 🇺🇸 US 71,395 2,087 19,651 CAIDA
AS174 Cogent Communications, LLC 🇺🇸 US 66,047 3,955 57,996 CAIDA
AS701 Verizon Business 🇺🇸 US 56,009 959 23,472 CAIDA
AS5511 Orange S.A. 🇫🇷 FR 52,004 707 68,014 CAIDA
AS3320 Deutsche Telekom AG 🇩🇪 DE 51,807 910 9,344 CAIDA
AS45474 Nexusguard Pte. Ltd. 🇸🇬 SG 37,532 89 336 CAIDA
AS7018 AT&T Enterprises, LLC 🇺🇸 US 25,879 629 2,941 CAIDA
AS58453 China Mobile International 🇭🇰 HK 25,235 76 362 inferred
AS4766 Korea Telecom 🇰🇷 KR 23,757 2,776 1,476 CAIDA
AS702 Verizon Business - EMEA 🇺🇸 US 23,487 442 550 CAIDA
AS4134 China Telecom Backbone 🇨🇳 CN 23,448 2,226 6,625 CAIDA
AS10099 China Unicom Global 🇭🇰 HK 23,338 99 7,662 CAIDA
AS56655 Gigahost AS 🇳🇴 NO 15,508 35 16,113 inferred
AS8849 Melbikomas UAB 🇱🇹 LT 497 43 30 inferred

Peers

Adjacencies that look settlement-free rather than transit

Network Country Cone IPv4 prefixes Paths Source
AS1299 Arelion (fka. Telia Carrier) 🇸🇪 SE 68,760 133 91,543 CAIDA
AS3257 GTT Communications Inc. 🇺🇸 US 62,698 1,784 16,887 CAIDA
AS2914 NTT America, Inc. 🇺🇸 US 56,718 1,476 9,089 CAIDA
AS6453 TATA Communications (America) Inc 🇺🇸 US 56,611 124 14,673 CAIDA
AS6939 Hurricane Electric LLC 🇺🇸 US 54,152 185 114,792 CAIDA
AS6461 Zayo Bandwidth 🇺🇸 US 53,699 214 2,564 CAIDA
AS6762 Telecom Italia Sparkle (Seabone) 🇮🇹 IT 52,925 288 15,107 CAIDA
AS3491 PCCW Global (HK) Ltd. 🇭🇰 HK 51,101 532 5 CAIDA
AS1273 Vodafone Group PLC 🇪🇺 EU 48,509 191 6,825 CAIDA
AS7473 Singapore Telecommunications Ltd 🇸🇬 SG 46,990 46 7,030 CAIDA
AS15412 Flag Telecom UK Limited 🇬🇧 GB 46,805 20 327 CAIDA
AS4637 Telstra International Limited 🇭🇰 HK 43,501 666 262 CAIDA
AS6830 Liberty Global Europe Holding B.V. 🇳🇱 NL 36,475 166 6 CAIDA
AS5405 Inter.link GmbH 🇩🇪 DE 30,939 12 4 CAIDA
AS20485 TransTeleCom JSC 🇷🇺 RU 30,300 85 6,495 CAIDA
AS33891 Core-Backbone GmbH 🇩🇪 DE 26,746 1 20 CAIDA
AS12389 Rostelecom PJSC 🇷🇺 RU 26,716 3,256 1,390 CAIDA
AS6327 Shaw Communications 🇨🇦 CA 23,429 3,839 16 CAIDA
AS2497 Internet Initiative Japan Inc. 🇯🇵 JP 22,261 237 15 CAIDA
AS3303 Swisscom (Schweiz) AG 🇨🇭 CH 20,587 345 2,495 CAIDA
AS4775 Globe Telecoms 🇵🇭 PH 5,439 579 6 CAIDA
AS30781 Free Pro SAS 🇫🇷 FR 179 82 9 CAIDA
AS42708 Glesys AB 🇸🇪 SE 106 210 14,038 CAIDA
AS4538 China Education and Research Network Center 🇨🇳 CN 87 5,181 1,835 CAIDA
AS12779 IT.Gate S.p.A. 🇮🇹 IT 76 25 8,817 CAIDA
AS137897 PAN-LIAN TECHNOLOGY CO., LIMITED 🇭🇰 HK 0 56 474 inferred

Downstreams

Networks this one appears to provide transit to

Network Country Cone IPv4 prefixes Paths Source
AS4809 China Telecom Next Generation Carrier Network 🇨🇳 CN 22,965 240 225 CAIDA
AS45629 JasTel Network International Gateway 🇹🇭 TH 3,960 9 29 CAIDA
AS45899 VNPT Corp 🇻🇳 VN 3,889 3,409 18 CAIDA
AS9808 China Mobile Backbone 🇨🇳 CN 262 14,256 204 CAIDA
AS9873 Lao Telecom Communication, LTC 🇱🇦 LA 167 110 21 CAIDA
AS9929 China Unicom Industrial Internet Backbone 🇨🇳 CN 119 249 14,000 CAIDA
AS4808 China Unicom Beijing Province Network 🇨🇳 CN 77 1,494 97,003 CAIDA
AS216211 CYBERVERSE LLC 🇺🇸 US 60 21 8 inferred
AS9293 NTT Com Asia Limited 🇭🇰 HK 52 132 2 CAIDA
AS17621 China Unicom Shanghai network 🇨🇳 CN 38 390 29,640 CAIDA
AS9678 HostingInside LTD 🇹🇼 TW 16 20 10 CAIDA
AS131314 CBC Tech International Limited 🇭🇰 HK 8 34 5 CAIDA
AS17622 China Unicom Guangdong Province Network 🇨🇳 CN 6 467 75,942 CAIDA
AS136958 China Unicom Guangdong IDC Network 🇨🇳 CN 6 437 48,709 CAIDA
AS133847 Anpple Tech Enterprise 🇲🇾 MY 5 232 16 CAIDA
AS17623 China Unicom Guangdong Province Shenzhen Network 🇨🇳 CN 4 808 48,377 CAIDA
AS140726 China Unicom AnHui Province Network 🇨🇳 CN 4 127 12,741 CAIDA
AS138421 China Unicom 🇨🇳 CN 4 246 11,716 CAIDA
AS135061 China Unicom Guangdong IP network 🇨🇳 CN 3 247 17,462 CAIDA
AS24139 WASU Media & Network Co.Ltd 🇨🇳 CN 2 80 1,660 CAIDA
AS134542 China Unicom IP network 🇨🇳 CN 2 19 1,057 CAIDA
AS10206 China Unicom Zhongwei Cloud 🇨🇳 CN 2 19 1,027 CAIDA
AS134544 Cenbong Int'l Holdings Limited 🇭🇰 HK 2 7 129 CAIDA
AS19174 China Unicom (Americas) Operations Ltd 🇺🇸 US 2 8 2 CAIDA
AS134543 China Unicom Guangdong IP network 🇨🇳 CN 0 176 26,550 CAIDA
AS139007 UNICOM InnerMongolia province network 🇨🇳 CN 0 172 8,620 CAIDA
AS140979 China Unicom Shanghai FuTe IDC network 🇨🇳 CN 0 189 7,874 CAIDA
AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 🇨🇳 CN 0 821 6,745 CAIDA
AS45062 NetEase 🇨🇳 CN 0 138 5,316 CAIDA
AS17816 China Unicom Guangdong Province Network 🇨🇳 CN 0 117 4,797 CAIDA
AS136959 China Unicom Guangdong IP network 🇨🇳 CN 0 91 4,435 CAIDA
AS140716 UNICOM JiangSu WuXi IDC network 🇨🇳 CN 0 73 3,071 CAIDA
AS17968 Daqing Zhongji Petroleum Communication Construction C 🇨🇳 CN 0 45 2,434 CAIDA
AS140717 UNICOM JiangSu Suzhou IDC network 🇨🇳 CN 0 35 1,541 CAIDA
AS140707 UNICOM Ningxia province network 🇨🇳 CN 0 25 1,345 CAIDA
AS9389 China Greatwall Internet (Beijing Shenzhou Greatwall) 🇨🇳 CN 0 35 1,038 CAIDA
AS133119 China Unicom IP network 🇨🇳 CN 0 29 947 CAIDA
AS152120 China Unicom TianJing GaoCun IDC network 🇨🇳 CN 0 12 856 CAIDA
AS137735 China Construction Bank 🇨🇳 CN 0 39 763 CAIDA
AS131516 Jinhua Weian InfoTech Co., Ltd 🇨🇳 CN 0 26 756 CAIDA
AS140886 UNICOM Guangxi province network 🇨🇳 CN 0 14 703 CAIDA
AS133118 China Unicom IP network 🇨🇳 CN 0 18 677 CAIDA
AS139099 Zhejiang Geely Holding Group 🇨🇳 CN 0 15 588 CAIDA
AS63581 GUANGXI RADIO & TELEVISION INFORMATION NETWORK CO.,LTD. 🇨🇳 CN 0 25 527 CAIDA
AS151295 Jiangsu Yinsuyun Network Technology Co. , Ltd. 🇨🇳 CN 0 8 368 CAIDA
AS24406 China Internet Network Infomation Center 🇨🇳 CN 0 28 362 CAIDA
AS131511 Beijing Chenxun Technology Co., Ltd. 🇨🇳 CN 0 12 264 CAIDA
AS23848 Shenzhen Ping An Communication Technology Co.,Ltd 🇨🇳 CN 0 58 252 CAIDA
AS45113 Shanxi Datong Coal Group Communication Co., Ltd 🇨🇳 CN 0 5 210 CAIDA
AS23771 SXBCTV ,Internet Service Provider, 🇨🇳 CN 0 17 210 CAIDA
AS9306 China International Economy and Trade Network 🇨🇳 CN 0 5 193 CAIDA
AS21856 Nokia of America Corporation 🇺🇸 US 0 5 184 CAIDA
AS63701 Jishi Media Co ., Ltd. 🇨🇳 CN 0 11 159 CAIDA
AS4859 The State Information Center of P.R.China 🇨🇳 CN 0 3 158 CAIDA
AS56012 LGNET China 🇨🇳 CN 0 8 148 CAIDA
AS139154 Big Data Center Of Shandong Province 🇨🇳 CN 0 3 147 CAIDA
AS63718 Hangzhou YouYun Technology Co., Ltd. 🇨🇳 CN 0 7 113 CAIDA
AS38378 Bosch (China) Investment Ltd. 🇨🇳 CN 0 3 101 CAIDA
AS137788 Shanxi Beacon Cloudscape 🇨🇳 CN 0 2 84 CAIDA
AS37969 Zhejiang WuLian Network Technology Co.,Ltd. 🇨🇳 CN 0 6 74 CAIDA
AS137539 China Unicom 🇨🇳 CN 0 1 74 CAIDA
AS137787 Beijing Jingdong Shangke Information Technology Co. Ltd. 🇨🇳 CN 0 5 68 CAIDA
AS23851 CHONGQING CNC BROADBAND NETWORKS CO.,LTD 🇨🇳 CN 0 1 42 CAIDA
AS131519 Hisense 🇨🇳 CN 0 1 42 CAIDA
AS45074 Data Management Centre National Bureau of Statistics of China 🇨🇳 CN 0 1 42 CAIDA
AS59074 TAIKANG INSURANCE GROUP CO.,LTD. 🇨🇳 CN 0 3 41 CAIDA
AS32708 LoadEdge Limited 🇬🇧 GB 0 25 30 inferred
AS55990 Huawei Cloud Service data center 🇨🇳 CN 0 393 24 CAIDA
AS24137 KuanggongLu, Pingdingshan, Henan, China 🇨🇳 CN 0 4 24 CAIDA
AS137731 Guangdong Huayun Century Technology Co., Ltd. 🇨🇳 CN 0 4 17 CAIDA
AS151296 Changzhou Jieyun Network Technology Co. Ltd. 🇨🇳 CN 0 4 17 CAIDA
AS45560 TOPNET. IP Transit AS 🇰🇷 KR 0 14 14 CAIDA
AS139021 West263 International Limited 🇭🇰 HK 0 22 14 CAIDA
AS38365 Beijing Baidu Netcom Science and Technology Co., Ltd. 🇨🇳 CN 0 139 11 CAIDA
AS59009 QingDao WangXin Telcom Corp. Limited 🇨🇳 CN 0 12 8 CAIDA
AS58852 Guizhou provincial radio and television information Network Inc 🇨🇳 CN 0 3 8 CAIDA
AS139136 ZHEJIANG PROVINCE NEW-TYPE INTERNET EXCHANGE POINT CO.,LTD. 🇨🇳 CN 0 1 8 CAIDA
AS63704 Guizhou provincial radio and television information Network Inc 🇨🇳 CN 0 1 5 CAIDA
AS137795 Hangzhou Sulian Information Technology Co.,ltd 🇨🇳 CN 0 1 4 CAIDA
AS45106 JIANGSU BROADCASTING DATA NETWORK CORPORATION LIMITED 🇨🇳 CN 0 4 4 CAIDA
AS146822 Shenzhenshi Zhongyun Shujujishu Youxiangongsi 🇨🇳 CN 0 1 2 CAIDA
AS146816 Guizhou Moutai Winery (Group) Co., Ltd. 🇨🇳 CN 0 0 2 inferred
AS153347 Lao Communication Technology Sole Co., Ltd 🇱🇦 LA 0 4 2 CAIDA
AS45090 Tencent Cloud 🇨🇳 CN 0 2,250 1 CAIDA
AS24150 1 TianXianQiao BinHe Road,Chengdu,SiChuan 🇨🇳 CN 0 1 1 inferred

Relationships marked inferred come from where the two networks sit on the AS paths the collectors see, which is a guess and is wrong for some of them. The rest are stated by CAIDA's published inference over a much wider set of collectors.